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10) In a round-bottom flask, a chemist completely reacts 4g of hydrogen with 25g of chlorine. What is the percent by mass of hydrogen in the compound that was formed?

10) In a round-bottom flask, a chemist completely reacts 4g of hydrogen with 25g of chlorine. What is the percent by mass of hydrogen in the compound that was formed?

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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10) In a round-bottom flask, a chemist completely reacts 4g of hydrogen with 25g of chlorine. What is the percent by mass of hydrogen in the compound that was formed? 11) Two unknown compounds are tested to determine their composition. Compound A was found to contain, 16g of magnesium and 130g of sulfur. Compound B contains 9g of magnesium and 63g of sulfur. Are these the same compound? Explain your answer. 12) A chemical analysis of two unknown compounds found that they are both made up of only calcium and oxygen. During an analysis of their mass, it was found that they both contain the same percent by mass of calcium. However, the instrument used in the analysis broke before the mass of oxygen co ha datermined. With only the information that is known, can you be sure Zoom compounds are the same? of 2 耳
Transcribed Image Text:10) In a round-bottom flask, a chemist completely reacts 4g of hydrogen with 25g of chlorine. What is the percent by mass of hydrogen in the compound that was formed? 11) Two unknown compounds are tested to determine their composition. Compound A was found to contain, 16g of magnesium and 130g of sulfur. Compound B contains 9g of magnesium and 63g of sulfur. Are these the same compound? Explain your answer. 12) A chemical analysis of two unknown compounds found that they are both made up of only calcium and oxygen. During an analysis of their mass, it was found that they both contain the same percent by mass of calcium. However, the instrument used in the analysis broke before the mass of oxygen co ha datermined. With only the information that is known, can you be sure Zoom compounds are the same? of 2 耳
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